2004 Vert 98K and this finally happened to me. Drove today in NJ with temps in low 90's. At first Cog light came out, car drove and shifted just fine. Stopped the car for maybe 15 minutes to pick up my son and the Cog light was still on upon restarting the car, but now the SES light was on as well. Drove another 3 miles and the car fell out of 4th gear to N, was able to shift it back into gear almost immediately. Parked the car within 10 minutes from that and pulled the codes with my OBII reader. Got P1717.

I let the car cool down for a few hours. Started it again to pull it into the garage and the Cog light is off but SES still on. Pulled the codes again, same thing P1717.

I ordered a Salmon relay and will change that but wondering if any of you had experience with this and what your check list / troubleshooting solutions are after replacement of the Salmon Relay???

If it is the heat related sensor....its just very interesting as I use to drive this car on the 101 in LA during summer for years without any issues and the temps in the mid 90' degrees. Drive it in NJ where I lived for the past 7 years and this is the first time this has happened.

My car is at around 85K now and this has been getting worse with each summer! The rest of the year the car is fine, but this summer has been especially hot here and it's maddening at times!

It's worse when I'm running around town doing errands and the car sits and heat soak sets in. I'm currently exploring options and the best choice IMHO is to relocate the whole assembly to a cooler part of the engine bay, like the "front battery area" on my car near the passenger side firewall:http://www.m3forum.net/m3forum/showt...=544689&page=1

This morning when I unlocked my car, I didn't hear the pump kick on. Hmm. Sure enough, it wouldn't go into gear. Took the '57 356 to work, and when I got home I swapped out the relay - I had a spare relay in the car already, along with the torx driver. Just ordered another relay off of Amazon

Thank you for your thoughts. I should get the Salmon Relay on Friday and I will swap that first and check the fluid. Clear the codes and see what happens.

Just following up for everyone here. Got the Salmon Relay, replaced that and then checked the SMG fluid. It was very very low at cold condition. I added Pentosin and then warmed the car up. Checked fluid again and it was still low so I added more. Cleared the P1717 SES light code. No Cog showing upon start up. I then did a test drive at S3, S4, S5 and S6 driving and shifting as fast as possible. So far things seem to be fine, but with Fall coming and Winter - she will be in the garage soon snoozing away. But fingers crossed no other issues.

I was looking at 02 SMG E46 M3 (118K Miles) yesterday and I was using Schwaben/Foxwell Scanner.The cog wheel light wasn't on nor blinking (no CEL either) during my 15-20 minutes drive and about 20 minutes sitting idles. Test drove was fine, SMG was fully functioning. I did, however, picked up a bunch of SMG codes from the scanner.

I've had some issues with my 2002 m3 smg warning light recently...i just changed the salmon relay and still the light comes on... there seems to be no issues tho.. it shifts fine up and down.. the only thing i do notice sometimes is this ... if i am driving lets say 40mph in any gear and let off the gas and coast the RPMs will not gradually decrease.. the RPMs will drop to 1k almost as if the clutch disengages.. then when i go to step on the gas the RPMs will jump back up to where they should be and the clutch seems to engage.... it doesn't do this all the time.. i also have a P0011 P0014 vans code but i don't think that has anything to do with this issue.. or does it ? i don't post on here often.. i like to read mostly but i have yet to find anyone with this similar problem.. hopefully someone can chime in. thanks

Hello, I have a 04 M3 SMG, in between shifting gears a horn (honking) sound is heard from under the car or engine area, when it 1st started I thought somebody was tapping their horn behind be, then I realized that my car was making the noise, does anybody have any ideas?? No warning light are on and car drives great.

Hello, I have a 04 M3 SMG, in between shifting gears a horn (honking) sound is heard from under the car or engine area, when it 1st started I thought somebody was tapping their horn behind be, then I realized that my car was making the noise, does anybody have any ideas?? No warning light are on and car drives great.

LOL I've never heard that one before in relation to an SMG, the only thing I can think of is maybe the throwout bearing is making the noise as it moves back and forth on the input shaft sleeve.

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